Objective The group of polychlorinated dibenzo-p-dioxins (PCDD) and corresponding furanes, commonly called the dioxins contains some of the most toxic substances ever made by man. There has been little agreement in their analysis and so a collaborative project was set up to check the gas chromatography-mass spectrometry (GC-MS) procedures and as a result, various participants improved their methods consequently. The certification analyses of the dioxins in a fly ash extract have been performed. An intercomparison on extraction techniques for incinerator ash has been carried out, leading to the certification of the 12 most toxic 2,3,7,8-chlorinated dioxins in a representative fly ash.The group of polychlorinated dibenzo-p-dioxins (PCDD) and corresponding furances, commonly called the "dioxins" contains some of the most toxic substances ever made by man. The group contains 210 substances of widely varying toxicity.BCR-work is concentrated on the PCDD-species with chlorine atoms in the 2,3,7,8-configuration as these are most toxic (e.g. LD50 in guinea pigs of 2,3,7,8-TCDD is: 1 ug/g; this "dioxin" has been released mainly at the Seveso accident); 2,3,7,8-TCDD is of acute toxicity and mutagenic, teratogenic and cancerogenic effects have been described."Dioxins" come into the environment:a) as by-products of industrial products such as, pentachlorophenol (wood preservative), herbicides, etc. andb) through combustion processes e.g. pcb-containing, oils, waste incinerators.As intercomparisons and disputes between industry and public authorities have shown that there is little agreement between analytical results the BCR has decided to start collaboration work, which, in view of the difficulties encountered in the analysis, is set up similarly to the work in the pcb-group (project 246) i.e. stepwise, verification of the individual steps of the anlaytical chain (quantification, identification, separation, injection, clean-up, extraction...) Fields of science natural scienceschemical sciencesinorganic chemistryhalogensagricultural sciencesagriculture, forestry, and fisheriesforestry Programme(s) FP2-BCR 4 - Research and development programme (EEC) in the field of applied metrology and chemical analysis (Community Bureau of Reference - BCR), 1988-1992 Topic(s) Data not available Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Vlaamse Inst. voor Technologisch Onderzoek EU contribution No data Address 200,Boeretang 2400 MOL Belgium See on map Total cost No data Participants (18) Sort alphabetically Sort by EU Contribution Expand all Collapse all BASF AG Germany EU contribution No data Address Carl-Bosch-Straße 38 67056 Ludwigshafen See on map Total cost No data Bayer AG Germany EU contribution No data Address 51373 Leverkusen See on map Total cost No data Centre National de la Recherche Scientifique (CNRS) France EU contribution No data Address 69390 Vernaison See on map Total cost No data Centro de Investigacion y Desarrollo - C.I.D. - C.S.I.C Spain EU contribution No data Address 18-26,Jordi Girona 08034 BARCELONA See on map Total cost No data Ente Nazionale per l'Energia Elettrica SpA (ENEL) Italy EU contribution No data Address Via Andrea Pisano 120 56100 Pisa See on map Total cost No data European Communities - Commission of the European Communities - Joint Research Centre (JRC) Italy EU contribution No data Address Via E. Fermi 1 21020 Ispra See on map Total cost No data IMW-TNO Netherlands EU contribution No data Address 97,Schoemakerstraat 2600 JA DELFT See on map Total cost No data INSTITUT NATIONAL DE L'ENVIRONNEMENT INDUSTRIEL ET DES RISQUES France EU contribution No data Address Parc Technologique Alata VERNEUIL EN HALATTE See on map Links Website Opens in new window Total cost No data Institut Fresenius GmbH Germany EU contribution No data Address Im Maisel 14 65232 Taunusstein See on map Total cost No data MAFF Food Science Laboratory United Kingdom EU contribution No data Address Norwich Research Park Colney NR4 7UQ Norwich See on map Total cost No data MARIO NEGRI INSTITUTE FOR PHARMACOLOGICAL RESEARCH Italy EU contribution No data Address Via Eritrea 62 20157 MILANO See on map Links Website Opens in new window Total cost No data NATIONAL RESEARCH COUNCIL OF ITALY Italy EU contribution No data Address Unical-Polifunzionale 87036 RENDE See on map Total cost No data Schering Agrochemicals Ltd United Kingdom EU contribution No data Address Chesterford Park Research Station CB10 IXL Saffron Walden See on map Total cost No data Tauw Infra Consult B.V. Netherlands EU contribution No data Address 7400 AL DEVENTER See on map Total cost No data The Finnish Pulp and Paper Research Inst. - KCL Finland EU contribution No data Address 2,Teknikvägen 02151 ESPOO OTANIENI See on map Total cost No data University of Amsterdam Netherlands EU contribution No data Address 166,Nieuwe Achtergracht 1018 WV AMSTERDAM See on map Total cost No data Universität Ulm Germany EU contribution No data Address Oberer Eselberg 26 89081 ULM See on map Total cost No data École Polytechnique France EU contribution No data Address Route de Saclay 69390 Palaiseau See on map Total cost No data